Finding the Fourth Proportional to 31,279.69, 46,922.61 and 9,087.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,279.69 : 46,922.61 = 9,087.10 : x
2. Step 2: Convert to fraction form
   31,279.69/46,922.61 = 9,087.10/x
3. Step 3: Cross multiply
   31,279.69x = 46,922.61 × 9,087.10
4. Step 4: Simplify right side
   31,279.69x = 426,390,449.33
5. Step 5: Solve for x
   x = 426,390,449.33/31,279.69
6. Step 6: Final answer
   x = 13,631.54